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I recently encountered a configuration issue with blanking pipelines in a project, and I’d like to discuss it with everyone. On the PID diagram, a return air pipeline from the silo to the filter has a vent branch installed. Since the filter is located below the silo, I believe that the vent should be installed at a higher point, that is, a vent branch should be set up on the main pipe coming out of the silo outlet. But the master told me to place the vent pipeline near the filter outlet and use the filter platform to operate the valve of the vent pipeline. I’m not sure if I should follow the principle of \"venting at high points and draining at low points\" Please advise, experts
Why isn’t anyone giving any advice? Take it on myself
Draw a schematic diagram; it will be clearer to see. The principle is to exhaust at the higher points and drain at the lower points. It’s only for liquid pipelines; the silo is used for storing solids, right?
In my opinion, the gases emitted from the silo should be hydrocarbon-based gases; **the standards specify that the emission of flammable gases must be at least 3 meters above the platforms within a radius of 20 meters. 5 meters, so the final exhaust pipe should be placed at a higher position. Otherwise, it does not meet the requirements. Some patent holders require the use of fans to dilute hydrocarbon gases to the required emission levels before releasing them on-site; however, it is better to release them at a higher altitude! :lol